I watched David Attenborough’s film A life on our planet the other evening. The first, and largest, part of the movie was very well made. Perhaps not much new, but very well presented and with excellent footage and narrative. Some images are very strong, even brutal, such as a lonely orangutan sitting on a tree trunk in a devastated landscape. I think most viewers got the message: this has to change! And let me underline that this is a film worth watching.
Because the film is so compelling and Attenborough such a sympathetic person, viewers may accept all of its statements and arguments. This would, however, be a mistake in my opinion.
I totally agree with Attenborough that human population needs to stabilize. And it is true that, as far as we know today, birth rates falls when countries get richer (or vice versa). The problem is that lower population growth in one country is associated with increasing total resource use rather than the opposite. At least in the short term and with current consumption patterns, there is no relief for nature from lower population growth.What I missed in the first part was a lack of analysis of the underlying drivers causing the threatening sixth mass extinction. This is also reflected in shortcomings of the much shorter and optimistic second part of the film. The processes and technologies he claims will save the wilderness and human civilization are renewable energy, intensive farming methods, diet transformation, rewilding and reduced population growth.
His claim that renewable energy will make energy everywhere more affordable (than now) is wishful thinking with no evidence in reality.
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